ZIP Code 62243

62243 is one of Illinois's ZIP codes, delivering to addresses in Freeburg, St. Clair County.

City: Freeburg
County: St. Clair County
State: Illinois
Prefix: 622xx

Where this code sits

62243 is part of the 622xx range, the group of codes handled by one mail processing centre. It is the only ZIP code delivering to Freeburg.

Freeburg Illinois ZIP codes →

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 62243 delivers to without sharing its boundary.

ZIP codes nearest 62243

The ZIP codes whose reference points sit closest to 62243.
ZIP code	Distance	Delivers to
ZIP code 62285	4.0 mi	Smithton, IL
ZIP code 62059	4.2 mi	Lovejoy, IL
ZIP code 62222	4.2 mi	Belleville, IL
ZIP code 62264	6.8 mi	New Athens, IL
ZIP code 62220	8.1 mi	Belleville, IL
ZIP code 62248	8.2 mi	Hecker, IL
ZIP code 62258	8.4 mi	Mascoutah, IL
ZIP code 62221	9.3 mi	Belleville, IL

Straight-line distance between place reference points, not driving distance. Where a place has no Census Gazetteer point, its postal centroid is used instead.

Each point is the reference point for 62243, plotted from its record coordinates.

Reference points and footprint
Not an official NANPA boundary
Not a USPS delivery area

Scope ZIP code 62243. Source GeoNames US postal codes (2026-07 postal dump) and Census 2024 county Gazetteer (2024 Gazetteer). Updated 15 July 2026. A ZIP code is a set of delivery routes, not an area; the point shown is a record coordinate, not a centre.